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Reproducing DeepTFUS | projects

masonjwang.com · 4,872 words · saved by 2 readers

Focused ultrasound can reach targets deep inside the brain non-invasively, but figuring out where the beam actually lands through someone's skull takes ~30 minutes of physics simulation per patient. I reproduced [DeepTFUS](https://arxiv.org/abs/2505.12998), a 3D model that **predicts the same result in under a second**, and open-sourced the trained weights + training code the paper didn't release.

DeepTFUS is a proposed model that, given a CT + ultrasound transducer placement, predicts the resulting pressure field inside the head in <1s instead of the ~30m a physics simulator would take. Model weights and training code are not released, so I: open-source my reproduction , walk through some new loss functions I tried , and poke around with the trained model Update: My reproduction has 11x less parameters (3.4M vs ~38M; post written before the authors got back with architecture details, now in the Update ). This was a 36-hour learning sprint on an H100, no sweeps or anything rigorous. gro

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